“So many young, beautiful, innocent people living and enjoying their lives murdered by evil losers in life,” he said.

Later on Tuesday Mr Trump will return to Jerusalem to visit the Yad Vashem Holocaust memorial and make a speech at the Israel Museum.

The two-day visit to Israel and the Palestinian territories forms part of Mr Trump’s first foreign trip as US president.

No simple deal: Analysis by Jeremy Bowen, BBC Middle East editor

President Trump sees himself as a great dealmaker, with the personality to cut through the difficulties that have defeated lesser people.

The only credible ideas still require the creation of an independent and sovereign Palestinian state alongside Israel. The reality is that the Israelis and Palestinians are way apart on the main issues – the future of east Jerusalem, the fate of Palestinian refugees and the borders of an independent Palestine. The two sets of leaders also do not trust each other.

The West Bank, including East Jerusalem, has been occupied by Israel for 50 years. Some of the most influential members of the Israeli government believe the land is a Jewish possession, given by God.

The Palestinians are deeply divided, with Fatah in charge in the West Bank and in Gaza the Islamists of Hamas, who have been condemned by President Trump in the last few days as terrorists.

It is highly unlikely that even President Trump’s outsize personality will be enough, on its own, to end a conflict that has lasted more than a century. Making this deal is not about fixing a price – it is about reconciling enemies with radically different world views.

What is the mood in the territories?

On Monday Palestinians gathered to protest against Mr Trump’s visit, and over conditions in Israeli prisons, at military checkpoints around the West Bank.

Have Trump’s domestic troubles pursued him abroad?

Speaking to Mr Netanyahu on Monday, he sought to dispel suggestions that he had passed on sensitive Israeli intelligence to Russian diplomats at a recent meeting, saying he had not mentioned the word “Israel” at the meeting.